© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/06/17
TVS Diodes
1500 Watt Zener Transient Voltage Suppressors
Working Peak Reverse Voltage Range − 5.8 V to 214 V
Peak Power − 1500 Watts @ 1 ms
ESD Rating of Class 3 (>16 kV) per Human Body Model
Maximum Clamp Voltage @ Peak Pulse Current
Low Leakage < 5 µA Above 10 V
UL 497B for Isolated Loop Circuit Protection
Response Time is Typically < 1 ns
Pb−Free Packages are Available
Features
These devices are designed to protect voltage sensitive
components from high voltage, high−energy transients.
They have excellent clamping capability, high surge
capability, low zener impedance an d fast response time.
These devices are Littelfuses exclusive, cost-effective,
highly reliable, axial leaded package and are ideally-suited
for use in communication systems, numerical controls,
process controls, medical equipment, business machines,
power supplies and many other industrial/consumer
applications, to protect CMOS, MOS and Bipolar
integrated circuits.
Description
Rating Symbol Value Unit
Peak Power Dissipation (Note 1)
@ TL ≤ 25°C PPK 1500 W
Steady State Power Dissipation
@ TL ≤ 75°C, Lead Length = 3/8 ≤
Derated above TL = 75°C
PD5.0
20
W
mW/°C
Thermal Resistance,
Junction-to-Lead RθJL 20 °C/W
Forward Surge Current (Note 2)
@TA = 25°C IFSM 200 A
Operating and Storage
Temperature Range TJ, Tstg
−65 to
+175 °C/W
Maximum Ratings and Thermal Characteristics
1N6267A Series
Functional Diagram
Bi-directional
Uni-directional
Cathode Anode
Pb
Maximum ratings are those values beyond which device damage can occur. Maximum
ratings applied to the device are individual stress limit values (not normal operating
conditions) and are not valid simultaneously. If these limits are exceeded, device
functional operation is not implied, damage may occur and reliability may be affected.
1. Nonrepetitive current pulse per Figure 5 and derated above TA = 25C per Figure 2.
2. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses
per minute maximum.
NOTES: Please see 1.5KE6.8CA to 1.5KE250CA for Bidirectional Devices
Additional Information
Samples
Resources
Datasheet
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/06/17
TVS Diodes
1500 Watt Zener Transient Voltage Suppressors
Electrical Characteristics (TA = 25 ° C unless otherwise noted, VF = 3.5 V Max. @ IF (Note 3) = 53 A)
Device
JEDEC
Device†
(Note 4)
VRWM
(Note 5)
I
R
@V
RWM
Breakdown Voltage VC @IPP (Volts)
(Note 7) CVBR
VBR (V) (Note 6) @ITVCIPP
(Volts) (µA) Min Nom Max (mA) (Volts) (A) (mV/°C)
1.5KE6.8A, G 1N6267A, G 5.8 1000 6.45 6.8 7.14 10 10.5 143 0.057
1.5KE7.5A, G 1N6268A, G 6.4 500 7. 1 3 7. 5 7.88 10 11. 3 132 0.061
1.5KE8.2A, G 1N6269A, G 7.02 200 7.79 8.2 8.61 10 12.1 124 0.065
1.5KE9.1A, G 1N6270A, G 7.78 50 8.65 9.1 9.55 113.4 112 0.068
1.5KE10A, G 1N6271A, G 8.55 10 9.5 10 10.5 114.5 103 0.073
1.5KE11A, G 1N6272A, G 9.4 510.5 11 11. 6 115.6 96 0.075
1.5KE12A, G 1N6273A, G 10.2 511. 4 12 12.6 116.7 90 0.078
1.5KE13A, G 1N6274A, G 11. 1 512.4 13 13.7 118.2 82 0.081
1.5KE15A, G 1N6275A, G 12.8 514.3 15 15.8 121.2 71 0.084
1.5KE16A, G 1N6276A, G 13.6 515.2 16 16.8 122.5 67 0.086
1.5KE18A, G 1N6277A, G 15.3 51 7. 1 18 18.9 125.2 59.5 0.088
1.5KE20A, G 1N6278A, G 1 7. 1 519 20 21 127.7 54 0.09
1.5KE22A, G 1N6279A, G 18.8 520.9 22 23.1 130.6 49 0.092
1.5KE24A, G 1N6280A, G 20.5 522.8 24 25.2 133.2 45 0.094
1.5KE27A, G 1N6281A, G 23.1 525.7 27 28.4 137.5 40 0.096
1.5KE30A, G 1N6282A, G 25.6 528.5 30 31.5 141.4 36 0.097
1.5KE33A, G 1N6283A, G 28.2 531.4 33 34.7 145.7 33 0.098
Symbol Parameter
IPP Maximum Reverse Peak Pulse Current
VCClamping Voltage @ IPP
VRWM Working Peak Reverse Voltage
IRMaximum Reverse Leakage Current @ VRWM
VBR Breakdown Voltage @ IT
ITTest Current
IFForward Current
VFForward Voltage @ IF
I-V Curve Characteristics (TA = 25ºC unless otherwise noted, VF = 3.5 V Max. @ IF (Note 3) = 100 A)
I
I
V
I
I
I
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/06/17
TVS Diodes
1500 Watt Zener Transient Voltage Suppressors
Electrical Characteristics (TA = 25 ° C unless otherwise noted, VF = 3.5 V Max. @ IF (Note 3) = 53 A)
Device
JEDEC
Device†
(Note 4)
VRWM
(Note 5)
I
R
@V
RWM
Breakdown Voltage VC @IPP (Volts)
(Note 7) CVBR
VBR (V) (Note 6) @ITVCIPP
(Volts) (µA) Min Nom Max (mA) (Volts) (A) (mV/°C)
1.5KE36A, G 1N6284A, G 30.8 534.2 36 37.8 149.9 30 0.099
1.5KE39A, G 1N6285A, G 33.3 537.1 39 41 153.9 28 0.1
1.5KE43A, G 1N6286A, G 36.8 540.9 43 45.2 159.3 25.3 0.101
1.5KE47A, G 1N6287A, G 40.2 544.7 47 49.4 164.8 23.2 0.101
1.5KE51A, G 1N6288A, G 43.6 548.5 51 53.6 170.1 21.4 0.102
1.5KE56A, G 1N6289A, G 47.8 553.2 56 58.8 177 19.5 0.103
1.5KE62A, G 1N6290A, G 53 558.9 62 65.1 185 1 7. 7 0.104
1.5KE68A, G 1N6291A, G 58.1 564.6 68 71.4 192 16.3 0.104
1.5KE75A, G 1N6292A, G 64.1 571.3 75 78.8 1103 14.6 0.105
1.5KE82A, G 1N6293A, G 70.1 577.9 82 86.1 1113 13.3 0.105
1.5KE91A, G 1N6294A, G 77.8 586.5 91 95.5 1125 12
1.5KE100A, G 1N6295A, G 85.5 595 100 105 1137 11 0.106
1.5KE110A, G 1N6296A, G 94 5105 110 116 1152 9.9 0.107
1.5KE120A, G 1N6297A, G 102 5114 120 126 1165 9.1 0.107
1.5KE130A, G 1N6298A, G 111 5124 130 137 1179 8.4 0.107
1.5KE150A, G 1N6299A, G 128 5143 150 158 1207 7. 2 0.108
1.5KE160A, G 1N6300A, G 136 5152 160 168 1219 6.8 0.108
1.5KE170A, G 1N6301A, G 145 5162 170 179 1234 6.4 0.108
1.5KE180A, G 1N6302A, G* 154 5171 180 189 1246 6.1 0.108
1.5KE200A, G 1N6303A, G 171 5190 200 210 12 74 5.5 0.108
1.5KE220A, G _185 5209 220 231 1328 4.6 0.109
1.5KE250A, G _214 5237 250 263 1344 50.109
Devices listed in bold italic are Littelfuse Preferred devices. Preferred devices are recommended choices for future use and best overall value.
3. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum.
4. Indicates JEDEC registered data
5. A transient suppressor is normally selected according to the maximum working peak reverse voltage (VRWM), which should be equal to or greater than the dc or
continuous peak operating voltage level.
6. VBR measured at pulse test current IT at an ambient temperature of 25C
7. Surge current waveform per Figure 5 and derate per Figures 1 and 2.
†The “G” suffix indicates Pb−Free package available.
*Not Available in the 1500/Tape & Reel
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/06/17
TVS Diodes
1500 Watt Zener Transient Voltage Suppressors
Figure 1. Pulse Rating Curve
Ratings and Characteristic Curves
Figure 2. Pulse Derating Curve
Figure 3. Capacitance versus Breakdown Voltage
VBR , BREAKDOWN VOLTAGE (VOLTS)
Figure 4. Steady State Power Derating Figure 5. Pulse Waveform
1N6373, ICTE-5, MPTE-5, through 1N6389, ICTE-45, C, MPTE-45, C 1N6267A/1.5KE6.8A through 1N6303A/1.5KE200A
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/06/17
TVS Diodes
1500 Watt Zener Transient Voltage Suppressors
Figure 6. Dynamic Impedance
Ratings and Characteristic Curves
1N6373, ICTE-5, MPTE-5, through 1N6389, ICTE-45, C, MPTE-45, C 1.5KE6.8A through 1.5KE200A
Figure 7. Typical Derating Factor for Duty Cycle
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/06/17
TVS Diodes
1500 Watt Zener Transient Voltage Suppressors
Application Notes
Response Time
In most applications, the transient suppressor device
is placed in parallel with the equipment or component
to be protected. In this situation, there is a time
delay associated with the capacitance of the device
and an overshoot condition associated with the
inductance of the device and the inductance of the
connection method. The capacitance effect is of minor
importance in the parallel protection scheme because
it only produces a time delay in the transition from the
operating voltage to the clamp voltage as shown in
Figure 8.
The inductive effects in the device are due to actual
turn-on time (time required for the device to go from
zero current to full current) and lead inductance. This
inductive effect produces an overshoot in the voltage
across the equipment or component being protected
as shown in Figure 9. Minimizing this overshoot is
very important in the application, since the main
purpose for adding a transient suppressor is to clamp
voltage spikes. These devices have excellent response
time, typically in the picosecond range and negligible
inductance. However, external inductive effects could
produce unacceptable overshoot. Proper circuit layout,
minimum lead lengths and placing the suppressor
device as close as possible to the equipment or
components to be protected will minimize this
overshoot. Some input impedance represented by Zin
is essential to prevent overstress of the protection
device. This impedance should be as high as possible,
without restricting the circuit operation.
Duty Cycle Derating
The data of Figure 1 applies for non-repetitive
conditions and at a lead temperature of 25ºC. If
the duty cycle increases, the peak power must
be reduced as indicated by the curves of Figure
7. Average power must be derated as the lead or
ambient temperature rises above 25ºC. The average
power derating curve normally given on data sheets
may be normalized and used for this purpose.
At first glance the derating curves of Figure 7
appear to be in error as the 10 ms pulse has a higher
derating factor than the 10 µs pulse. However, when
the derating factor for a given pulse of Figure 7 is
multiplied by the peak power value of Figure 1 for the
same pulse, the results follow the expected trend.
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/06/17
TVS Diodes
1500 Watt Zener Transient Voltage Suppressors
UL Recognition*Typical Protection Circuit
Clipper Bi-Directional Devices
The entire series has Underwriters Laboratory
Recognition for the classification of protectors
(QVGV2) under the UL standard for safety 497B
and File #116110. Many competitors only have one
or two devices recognized or have recognition in a
non-protective category. Some competitors have no
recognition at all. With the UL497B recognition, our
parts successfully passed several tests including
Strike Voltage Breakdown test, Endurance
Conditioning, Temperature test, Dielectric Voltage-
Withstand test, Discharge test and several more.
Whereas, some competitors have only passed a
flammability test for the package material, we have
been recognized for much more to be included in
their Protector category.
*Applies to 1.5KE6.8A, CA thru 1.5KE250A, CA
1. Clipper-bidirectional devices are available in the
1.5KEXXA series and are designated with a “CA
suffix; for example, 1.5KE18CA. Contact your
nearest Littelfuse representative.
2. Clipper-bidirectional part numbers are tested
in both directions to electrical parameters in
preceding table (except for VF which does
not apply)
3. The 1N6267A through 1N6303A series are JEDEC
registered devices and the registration does not
include a “CA” suffix. To order clipper-bidirectional
devices one must add CA to the 1.5KE device title.
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/06/17
TVS Diodes
1500 Watt Zener Transient Voltage Suppressors
Dimensions
Part Marking System
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. LEAD FINISH AND DIAMETER UNCONTROLLED IN DIMENSION P.
4. 041A-01 THRU 041A-03 OBSOLETE, NEW STANDARD 041A-04.
Physical Specifications
Case Void-free, transfer-molded, thermosetting
plastic
Leads Modified L−Bend providing more contact
area to bond pads
Finish All external surfaces are corrosion
resistant and leads are readily solderable
Mounting Position Any
ORDERING INFORMATION
Device Package Shipping†
1.5KExxxA Axial Lead 500 Units/Box
1.5KExxxAG Axial Lead
(Pb−Free) 500 Units/Box
1.5KExxxARL4 Axial Lead 1500/Tape &
Reel
1.5KExxxARL4G Axial Lead
(Pb−Free)
1500/Tape &
Reel
1N6xxxA Axial Lead 500 Units/Box
1N6xxxAG Axial Lead
(Pb−Free) 500 Units/Box
1N6xxxARL4 Axial Lead 1500/Tape &
Reel
1N6xxxARL4G Axial Lead
(Pb−Free)
1500/Tape &
Reel
Flow/Wave Soldering (Solder Dipping)
Peak Temperature : 260OC
Dipping Time : 1/16” from the case for 10 seconds
Dim
Inches Millimeters
Min Max Min Max
A0.335 0.374 8.50 9.50
B0.189 0.209 4.80 5.30
D0.038 0.042 0.96 1.06
K1.000 --- 25.40 ---
P--- 0.050 --- 1.27
D
K
P
PA
K
B
Disclaimer Notice - Information furnished is believed to be accurate and
reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applications. Littelfuse products are
not designed for, and may not be used in, all applications. Read complete
Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics.
A= Assembly Location
1.5KExxxA= ON Device Code
1N6xxxA= JEDEC Device Code
YY = Year
WW = Work Week
= (See Table on Page 3)
(Note: Microdot may be in either location)
A
1.5KE
xxxA
1N6
xxxA
YYWW